Google pulled off what may well be the most thrilling and gutsiest product demo in history. To show off prototypes of its augmented reality goggles, being developed by an internal initiative called Project Glass, Google hired a team of skydivers to jump...

When Jay Radcliffe went public last year with his discovery that some insulin pumps can be hacked, he didn’t expect it would take a year to get a meeting with the company that makes the vulnerable products. Yet that’s about...